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Norsonic Nor850 Distributed Multi-Channel System 





Nor850 datasheet

Nor850  Sound Power Measurements

Visit Norsonic's Nor850 Webpage


NEW Version 2.0 features:

  • The Nor150 may be used as measurement frontend
  • Reference spectrum with QA/QC test
  • 3D and Spectrogram windows available for multispectrum measurements
  • Graphical A-weighting of displayed frequency spectra
  • Enhanced features for multi-channel calibration viewed on external devices
  • Scheduler control of microphone booms and TTL-output lines
  • View all RT values (T15, T20, T30, and Tmax) simultaneously in the tabular view
  • Possible to select required RT function after the measurement
  • Special reverberation time calculation for ASTM C423 Absorption Standard
  • Combined Background+Level measurement mode
  • Adjacent band testing with flexible maximum setting
  • Date/time of each measurement in the tabular window
  • Enhanced multi project features with easy drag & drop of measurement data
  • Complete Group saving for multiple projects
  • Direct read-in of temperature, humidity and pressure to Rating menus
  • Parameter input in both metric and imperial units
  • Import of Norsonic -.nbf and -.sdf measurement files (Nor118, Nor140, Nor121, Nor840) 
  • Import of NorBuild project files by drag & drop from NorXfer


Norsonic is introducing a new concept in multi-channel measurements; the Nor850 Distributed Multi-Channel System.

By connecting a number of individual measuring units through various communication channels, the user may create the optimal multi-channel system for any task. Dedicated user-friendly application packages for various uses are available and the system control is done with a PC running the state-of-the-art Windows platform.

  • Individual units for each measuring channel offers a very high degree of operating flexibility. It allows the user to operate a multi-channel system one day – and many individual measuring units another day!
  • Choose between any mix of measuring units based on the Nor140 or Nor150 single channel unit and the new multi-channel Nor850 MF1 rack containing 1 - 10 channels.  
  • By connecting a number of individual measuring units through various communication channels – including both standardized LAN and USB interfaces – the user may create the optimal mult-ichannel system for any task. Wireless communication through Bluetooth or WLAN is also available. 
  • The Nor850 system offers various application modules developed for the most efficient operation within building acoustics, sound power measurements, and general sound analysis. Further application packages are planned for vibration, sound intensity, environmental noise, and more. 
  • The application packages are all written in the new Microsoft Windows Presentation Foundation software environment which opens up a new world of user friendly features. In the heart of the Nor850 software there is a sensor database containing all possible information about each customer complete list of measurement transducers (microphones, accelerometers, etc.), measuring channels, serial numbers, producers, calibration values, verification laboratories, verification dates, correction data, etc. 
  • As all connected front end channels communicate digitally with the controlling PC, any kind of errors introduced by long analogue cables are avoided. No need to worry about wear and tear on long microphone cables! 
  • Each individual unit may be homologated by an independent verification laboratory which means that even the entire multi-channel system may be homologated! 
  • The multi-channel system Nor850 may be expanded as the needs grow.

Supported Building Acoustics Standards:

E 336– Measurement of Airborne Sound Attenuation between Rooms in Buildings
E 1007– Test Method for Field Measurement of Tapping Machine Impact Sound Transmission through Floor-Ceiling Assemblies and Associated Support Structures
E 90– Laboratory Measurement of Airborne Sound Transmission Loss of Building Partitions and Elements 
E 492– Test Method for Laboratory Measurement of Impact Sound Transmission Through Floor-Ceiling Assemblies Using the Tapping Method
E 413– Classification for Rating Sound Insulation
E989–  Standard Classification for Determination of Impact Insulation Class
C423– Sound Absorption and Sound Absorption Coefficients by the Reverberation Room Method

ISO 140 Parts: 3, 4, 5, 6, 7, 8, 9, 10, 11, 16
ISO 16283 Parts: 1, 2, 3
ISO 16717 Parts: 1, 2
ISO 10140 Parts 1,2,3
ISO 10848-2

Supported Sound Power Measurement Standards:

ISO 3741 - Determination of sound power levels of noise sources using sound pressure - Precision methods for reverberation rooms
ISO 3743 - Determination of sound power levels of noise sources - Engineering methods for small, movable sources in reverberant fields |
Part 1-Comparison method for hard-walled test  
Part 2: Methods for special reverberation test rooms
ISO 3744 - Determination of sound power levels of noise sources using sound pressure - Engineering method in an essentially free field over a reflecting plane
ISO 3745 - Determination of sound power levels and sound energy levels of noise sources using sound pressure -- Precision methods for anechoic rooms and hemi-anechoic rooms
ISO 3746 - Determination of sound power levels of noise sources using sound pressure - Survey method using an enveloping measurement surface over a reflecting plane
ISO 3747 -  Determination of sound power levels of noise sources using sound pressure - Comparison method in situ
ISO 6395 - Earth-moving machinery -- Determination of sound power level - Dynamic test conditions





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Multi-Channel Systems